Protective barriers



FIG. 1 is a front perspective view of a first embodiment of a protective barrier showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top or bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is a front perspective view of a second embodiment of a protective barrier showing my new design;

FIG. 7 is a rear view thereof;

FIG. 8 is a top or bottom view thereof;

FIG. 9 is a front view thereof; and,

FIG. 10 is a side view thereof. 

CLAIM The ornamental design for protective barriers, as shown and described. 